The National Hockey League holds a party in Montreal, the League's birthplace, to celebrate its centennial. Wayne Gretzky, the League's all-time leading scorer and holder of dozens of NHL records, is the NHL Centennial Ambassador for the anniversary events throughout 2017.
The first games were played on Dec 19, 1917 in Ottawa, and the finale of the celebrations will be held in that same city in Dec 2017.
Four teams played in the fledgling league's first two games, which featured superstars and tons of scoring, according to The Star, a Canadian newspaper. They also included three hat tricks and a goalie substitution.
The League has grown to 31 teams in the 100 years since.
Date written/update: 2017-01-11